US2018375145A1PendingUtilityA1

Electrode plate and battery

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Assignee: FDK CORPPriority: Jun 23, 2017Filed: Jun 21, 2018Published: Dec 27, 2018
Est. expiryJun 23, 2037(~10.9 yrs left)· nominal 20-yr term from priority
Inventors:Yuki OchiaiNaoaki NishimuraDaisuke HirataKeita Yamamoto
H01M 50/105H01M 10/045H01M 4/36H01M 10/0525Y02P70/50H01M 4/13H01M 10/0585H01M 4/70H01M 4/622H01M 4/62H01M 2004/021H01M 4/661Y02E60/10
46
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Claims

Abstract

An electrode plate constituting a positive electrode or a negative electrode of a battery and having a flat plate shape including a sheet-shaped current collector made of metal foil and coated with a slurry electrode material containing an electrode active material, a conductive auxiliary agent, a binder, and a thickener, the thickener being propylene glycol alginate.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An electrode plate constituting a positive electrode or a negative electrode of a battery and having a flat plate shape, the electrode plate comprising:
 a sheet-shaped current collector made of metal foil; and   a slurry electrode material coated on the current collector and containing an electrode active material, a conductive auxiliary agent, a binder, and a thickener,   the thickener being propylene glycol alginate.   
     
     
         2 . The electrode plate according to  claim 1 , wherein
 the slurry electrode material is a water-based electrode material using water as a diluent.   
     
     
         3 . The electrode plate according to  claim 1 , wherein
 the current collector is copper foil.   
     
     
         4 . The electrode plate according to  claim 2 , wherein
 the current collector is copper foil.   
     
     
         5 . The electrode plate according to  claim 1 , wherein
 the binder is styrene-butadiene rubber (SBR).   
     
     
         6 . The electrode plate according to  claim 2 , wherein
 the binder is styrene-butadiene rubber (SBR).   
     
     
         7 . The electrode plate according to  claim 3 , wherein
 the binder is styrene-butadiene rubber (SBR).   
     
     
         8 . The electrode plate according to  claim 4 , wherein
 the binder is styrene-butadiene rubber (SBR).   
     
     
         9 . The electrode plate according to  claim 1 , wherein
 the electrode material coated on the current collector has a thickness of 80 μm or more and 200 μm or less.   
     
     
         10 . The electrode plate according to  claim 2 , wherein
 the electrode material coated on the current collector has a thickness of 80 μm or more and 200 μm or less.   
     
     
         11 . The electrode plate according to  claim 3 , wherein
 the electrode material coated on the current collector has a thickness of 80 μm or more and 200 μm or less.   
     
     
         12 . The electrode plate according to  claim 4 , wherein
 the electrode material coated on the current collector has a thickness of 80 μm or more and 200 μm or less.   
     
     
         13 . The electrode plate according to  claim 5 , wherein
 the electrode material coated on the current collector has a thickness of 80 μm or more and 200 μm or less.   
     
     
         14 . The electrode plate according to  claim 6 , wherein
 the electrode material coated on the current collector has a thickness of 80 μm or more and 200 μm or less.   
     
     
         15 . The electrode plate according to  claim 7 , wherein
 the electrode material coated on the current collector has a thickness of 80 μm or more and 200 μm or less.   
     
     
         16 . The electrode plate according to  claim 8 , wherein
 the electrode material coated on the current collector has a thickness of 80 μm or more and 200 μm or less.   
     
     
         17 . A battery comprising:
 an electrode body formed by laminating a flat plate-shaped positive electrode plate and a flat plate-shaped negative electrode plate via a separator, the positive electrode plate being formed by disposing a positive electrode material containing a positive electrode active material on a sheet-shaped positive electrode current collector, the negative electrode plate being formed by disposing a negative electrode material containing a negative-electrode active material on a sheet-shaped negative electrode current collector; and   a flat casing in which the electrode body is sealed together with an electrolyte,   at least one of the positive electrode plate and the negative electrode plate being the electrode plate according to  claim 1 .

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